As you can see this boat is called “Shatte-Tug”. I often see it moored by the Shattemuc Yacht Club. Bearing in mind its name it makes sense that it’s in some way connected to the club.
However, it’s not always moored in the same spot, so I guess it moves around. I have no idea what purpose it serves: maybe from time-to-time boats from the club (and maybe other nearby marinas) get stuck and the “Shatte-Tug” has to go out and bring them in. Who knows?
Taken with a Sony RX100 VII.